(of heraldic charges) oriented vertically
• (adv.) In the manner of a pale or pales; by perpendicular lines or divisions; as, to divide an escutcheon palewise.
Pale'wise` adverb (Her.) In the manner of a pale or pales; by perpendicular lines or divisions; as, to divide an escutcheon palewise . 
In heraldry, palewise means in the manner of a pale or pales, that is by perpendicular lines or divisions for example to divide an escutcheon